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[02/21] drm/omap: page_flip: return -EBUSY if flip pending

Message ID 1424956829-22892-3-git-send-email-tomi.valkeinen@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tomi Valkeinen Feb. 26, 2015, 1:20 p.m. UTC 
The DRM documentation says:

"If a page flip is already pending, the page_flip operation must return
-EBUSY."

Currently omapdrm returns -EINVAL instead. Fix omapdrm by returning
-EBUSY.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/gpu/drm/omapdrm/omap_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
index b0566a1ca28f..af4b230b5269 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -361,7 +361,7 @@  static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
 	if (omap_crtc->old_fb) {
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 		dev_err(dev->dev, "already a pending flip\n");
-		return -EINVAL;
+		return -EBUSY;
 	}
 
 	omap_crtc->event = event;